This is perfect: after your users indicate their preferences/interests, you have a set of psychographic data linked to their login and online behavior and you can deliver targeted ads! Modern Metrix blog: mmx.typepad.com
Absolutely! The beauty of biometrics-based security measures is that they eliminate need for paper and electronic ids, ssn, and other things that proved to be inefficient. Swiss banks have been relying on biometric identification for a long time now, and they seem to work. of course, there are some challenges associated with implementing these measures on a larger scale, but overall i believe this is feasible and worth to explore further. Americans seem to be overconcerned about their privacy, and movies like "Minority Report" only exaggerate this problem...
I was always wondering why is it that you want everything to be about you, you, and you only, but when it comes to actual attempts to help you to personalize your services, tailor media and content to your personal needs, or simply to ensure your safety, you then cry "privacy invasion!" and run. It is XXI century outside, but you are still stuck in 1776, scared of the dark forest beasts like "privacy invasion", "gun control", etc. ("Village", anyone?). It is time to wake up and embrace the new world! Biometric measures will allow you to pay your bills by touch of a fingertip or blink of the eye; psychographically-and behaviorally-tuned media will deliver content that you want and advertising that you really need. Already now you read news and blogs selectively, preferring those that better fit your needs or political ideological views. You tune your RSS feeds, bookmark your favorite sites, and take advantage of personalized sales offers mailed to you by stores. Why not to go further and make things even easier?!!! Is not that nice when vending machine greets you by your name and dispenses drink based on your mood or blood pressure? Is not that nice when to board the plane or open the bank account all you need is just to press your palm to the screenm, and you get your seat on the plane based on your socio-psychological preferences?
Your selfish and egomaniac tendencies lead you to believe that everyone will be snooping on you and invading your life. People, wake up! You will be no more than a record in the database, lost among the millions and millions of other records.
welcome to the real world: Modern Metrix Blog at http://www.mmx.typepad.com/
If you compare the American and Soviet science fiction, you will see that American sci-fi novels very often (if not always) carry some military theme or references (invasions, interstellar wars, presence of military personnel and advanced warfare on space ships, etc.), while Soviet and Eastern-bloc writers focus mostly on difficulties of space exploration, daily routines of colonization of other planets, and always promote peaceful resolution of interplanetary conflicts. IMHO.
As a psychometrician, I must disagree with his post and examples. When latent trait (in this case, knowledge of the subject, or ability) is estimated, difficulty of each question and probability of guessing are taken in consideration. As a mathematician, you must be familiar with Item Response Theory (IRT) and Rasch mode, and its modifications. Even if IRT is not used, extremely difficult (like those in your example) or easy items are usually not included into tests, since they do not have any informational value, and guessing parameter is considered when scoring the responses.
Konstantin Augemberg (konstantin at augemberg.com)
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This is perfect: after your users indicate their preferences/interests, you have a set of psychographic data linked to their login and online behavior and you can deliver targeted ads! Modern Metrix blog: mmx.typepad.com
Tim Russert died from heart attack. We learn it from TV news, but nothing can be found on Internet!
Absolutely! The beauty of biometrics-based security measures is that they eliminate need for paper and electronic ids, ssn, and other things that proved to be inefficient. Swiss banks have been relying on biometric identification for a long time now, and they seem to work. of course, there are some challenges associated with implementing these measures on a larger scale, but overall i believe this is feasible and worth to explore further. Americans seem to be overconcerned about their privacy, and movies like "Minority Report" only exaggerate this problem... I was always wondering why is it that you want everything to be about you, you, and you only, but when it comes to actual attempts to help you to personalize your services, tailor media and content to your personal needs, or simply to ensure your safety, you then cry "privacy invasion!" and run. It is XXI century outside, but you are still stuck in 1776, scared of the dark forest beasts like "privacy invasion", "gun control", etc. ("Village", anyone?). It is time to wake up and embrace the new world! Biometric measures will allow you to pay your bills by touch of a fingertip or blink of the eye; psychographically-and behaviorally-tuned media will deliver content that you want and advertising that you really need. Already now you read news and blogs selectively, preferring those that better fit your needs or political ideological views. You tune your RSS feeds, bookmark your favorite sites, and take advantage of personalized sales offers mailed to you by stores. Why not to go further and make things even easier?!!! Is not that nice when vending machine greets you by your name and dispenses drink based on your mood or blood pressure? Is not that nice when to board the plane or open the bank account all you need is just to press your palm to the screenm, and you get your seat on the plane based on your socio-psychological preferences? Your selfish and egomaniac tendencies lead you to believe that everyone will be snooping on you and invading your life. People, wake up! You will be no more than a record in the database, lost among the millions and millions of other records. welcome to the real world: Modern Metrix Blog at http://www.mmx.typepad.com/
If you compare the American and Soviet science fiction, you will see that American sci-fi novels very often (if not always) carry some military theme or references (invasions, interstellar wars, presence of military personnel and advanced warfare on space ships, etc.), while Soviet and Eastern-bloc writers focus mostly on difficulties of space exploration, daily routines of colonization of other planets, and always promote peaceful resolution of interplanetary conflicts. IMHO.
As a psychometrician, I must disagree with his post and examples. When latent trait (in this case, knowledge of the subject, or ability) is estimated, difficulty of each question and probability of guessing are taken in consideration. As a mathematician, you must be familiar with Item Response Theory (IRT) and Rasch mode, and its modifications. Even if IRT is not used, extremely difficult (like those in your example) or easy items are usually not included into tests, since they do not have any informational value, and guessing parameter is considered when scoring the responses. Konstantin Augemberg (konstantin at augemberg.com)